1. Is bubbly water as hydrating as flat?
Sparkling water's buzz comes from carbon dioxide. However, contrary to popular belief, the fizziness in sparkling water doesn't prevent your body from absorbing water. In fact, in one study it was found that after an intense workout, carbonated water replaced fluids among participants just as well as still.
2. Is sparkling water bad for your teeth?
In very high concentrations, carbonic acid may erode tooth enamel. But, as long as you are not downing a six-pack of water per day, your smile is safe. In addition, a study that looked into whether bubbly water is linked to lower bone-mineral density in women, sparkling water got the all-clear.
Drinking carbonated water may cause you to feel bloated - however, this can turn out to be a good thing. Researchers found that carbonated water may be significantly more filling than still, especially on an empty stomach. And the fuller you feel, the less likely you'll be to succumb to mindless snacking between meals. Just be sure to avoid water packed with artificial sweeteners which may actually up your sugar cravings.
4. Does bubbly water give you heartburn?
While researchers have debunked the idea that fizzy water can cause acid reflux, if you are prone to heartburn, your best option is to stick to still, especially with meals. Studies have shown that the bubbles may aggravate pre-existing reflux issues by relaxing the lower opening of the esophagus, making it easier for acid to creep up your gullet.